SF6 gas infrared sensor

SF6 infrared sensor

Item model number: WFS-S1-S

SF6 infrared precision measurement, imported from Switzerland; standard and open communication protocol, convenient for your secondary development; dedicated to the precise detection of SF6 gas in high-voltage equipment in the power industry!

Overview

SF6 infrared sensor (WFS-S1-S) is based on dual-beam dual-wavelength infrared measurement technology and high-precision digital processing technology, and is widely used in high-voltage switch GIS room SF6 gas leak monitoring (0-100ppm), SF6 gas leak detector (0- 50ppm) and SF6 purity analyzer (0-100%). A complete drift automatic control and temperature compensation circuit is integrated inside.

SF6 infrared sensor (WFS-S1-S/ WFS-S1-S) adopts dual-beam non-split infrared (NDIR) detection technology, which is resistant to other gas interference, easy maintenance, good stability, and comes with temperature compensation. Standard Modbus ASCII protocol, digital output and analog output optional, etc. It is suitable for SF6 leakage alarm, on-site construction protection, single gas analysis, online monitoring, industrial process analysis and other applications.

Features

It adopts the unique light-free cell NDIR technology, is equipped with a highly breathable stainless steel shell, and can be connected to an external oxygen sensor with digital signal output. Because it is designed for the specific wavelength of SF6, it has the characteristics of resistance to other gas interference, no need for air pump pipelines, small size, strong and corrosion-resistant casing, easy to use and maintain, adaptable to harsh environments, and can upload and output sulfur hexafluoride content and oxygen content at the same time. Suitable for leak alarm, environmental detection, online monitoring, gas composition analysis and other applications.

Compared with electrochemical and negative corona discharge principles, the advantages of infrared SF6 sensors:

1. The principle of infrared absorption (NDIR).

2. Dual wavelength, with temperature compensation.

3. High reliability, no cross-reaction with other gases.

4. Compared with electrochemical sensors, sulfur hexafluoride sensor infrared sensors have a lifespan of up to 10 years.

5. Cost-effective, affordable price.

6. Compared with electrochemical sensors, sulfur hexafluoride sensors save after-sales maintenance costs.

7. Digital and analog output modes are optional, which is convenient for secondary development and application.

8. Miniature structure, low power consumption design.

9. No radiation source, no secondary hazards.

Compared with the thermal conductivity principle, the advantages of SF6 infrared sensor (WFS-S1-S):

1. The infrared SF6 purity sensor is small in size.

2. The infrared SF6 purity sensor has low power consumption and can be powered by batteries.

3. The infrared SF6 purity sensor does not require a bulky heating system.

4. The infrared SF6 purity sensor has a wide operating temperature (-20-+60°C).

5. Calibration cycle of more than 3 years, no need to calibrate the instrument frequently.

6. High reliability and stability, no daily maintenance of SF6 purity analyzer.

Technical parameter

Detection gas: sulfur hexafluoride (SF6).

Detection principle: non-spectroscopic infrared absorption detection (NDIR).

Detection range: 0~2000ppm (standard type), other ranges can be customized.

Detection accuracy: ≤±2 % FS 1.

Operating temperature: -15 to 45 degrees Celsius.

Working pressure: 950 to 1050 mbar.

Ambient humidity: 0~95%RH.

l Preheating time: less than 2 minutes.

Response time: about 30 seconds (Td90, measured at 50% FS).

Working voltage: 5V.

Working current: less than 200 mA.

Output signal: UART, other forms can be customized.

Auxiliary function: take one ADC, which can be connected to oxygen sensor.

Service life: more than 6 years.

Storage temperature: -25 to 55 degrees Celsius.

Resolution: 1 ppm.

Repeatability: ≤±2 % FS 1.

Linearity error: ≤±1 % FS 1.

Lower detection limit: <10 ppm.

Pin Description

Service Guarantee

1. Provide application circuits, interface programs and communication definitions.

2. Provide detailed Chinese instructions and technical guidance.

3. One year free warranty, lifetime spare parts support and maintenance.

4. The hotline is available 365 days a day to answer user inquiries.